Well, a Nascar race is 3-4 hours long, so I guess that's how long it took.
I almost din't post the engine room because of its crude looks, but decided to do so anyway. I imagine a TNG warp core since that's what you see in the Ent-A engine room in ST VI and in the emergency door reflection aboard Excelsior. I also don't imaging the Endeavour's engine room as being nearly as antiseptic as the TMP example. I have her with grey and black coloring, but with darker hues. If anyone cares.
The original Endeavour bridge was just the Ent-B bridge with tactical replacing that free standing engineering console aft of the conn. Once Shiloah orders the bridge modified, then it takes on a shape more its own.
Anywho... Thank you for the replies. I'm glad my drawings are enjoyed.
--thu guv!